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Glossary term Description
pilotage authority

The authority that supplies a pilotage service for a particular port


Movement of a ship around its transverse axis


Placards are, in accordance with the dangerous goods stipulations of the IMDG code, adhesive placards that indicate to all parties concerned what type of dangerous goods are being transported. They differ from labels in terms of size, although labels have the same purpose


pressurised natural gas - see also CNG


petroleum oil lubricants

port agent

A company appointed to act as a go-between for the master of the vessel and statutory authorities

port authority

The company or authority that runs a port

port operator

A company that operates a berth or terminal within a port

port record sheet

Each port file should contain all the information currently held on a port plus the port record sheet. This records when questionnaires are sent and received and when major updates are made to a port

porthole container Refrigerated containers without a separate refrigeration unit: Porthole refrigerated containers, also called insulated or CONAIR containers, do not have their own refrigeration unit. They are thus reliant on an external supply of cold air. This is achieved by refrigeration units of various types, permanently installed on the ship, permanently installed in the terminal or clip-on units for individual containers. Porthole containers are thermally insulated and have two sealable openings on the end walls (the portholes) through which cold air can be blown into the container and warm air can be extracted. The cold air is forced through the lower opening into the container, then distributed throughout the load via the T-bar floor, and subsequently flows through the load to the top of the container and is extracted through the upper opening.